Market segmentation involves dividing the market into distinct groups that have common needs and will respond similarly to marketing actions. The document discusses various bases for segmenting consumer markets, including geographic, demographic, psychographic, and behavioral segmentation. It also discusses targeting specific market segments and differentiating products for targeted segments through factors such as quality, features, promotions, and availability. Positioning involves creating an image or identity for a product, brand, or organization in the minds of consumers. Branding, customer focus, consumer behavior, and other marketing concepts are also overviewed.